﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using IdentityServer4;
using IdentityServer4.Models;

namespace IdentityServer4Demo
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddIdentityServer()
                .AddDeveloperSigningCredential()
                .AddInMemoryApiResources(Config.GetResources())
                .AddInMemoryClients(Config.GetClients());
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseIdentityServer();
            app.UseMvc();

           
        }
    }

    public class Config
    {
        public static IEnumerable<ApiResource> GetResources()
        {
            var api = new ApiResource("api", "rest api");

            var res = new List<ApiResource>();
            res.Add(api);

            return res;
        }

        public static IEnumerable<Client> GetClients()
        {
            var clients = new List<Client>();
            clients.Add(new Client
            {
                ClientId = "client",
                AllowedGrantTypes = GrantTypes.ClientCredentials,
                ClientSecrets = { new Secret("secret".Sha256()) },
                AllowedScopes = { "api" },
                RefreshTokenExpiration = TokenExpiration.Absolute

            });
            return clients;
        }
    }
}
